20630971466 has 48 divisors (see below), whose sum is σ = 37014993792. Its totient is φ = 8593905600.

The previous prime is 20630971447. The next prime is 20630971477. The reversal of 20630971466 is 66417903602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1079405 + ... + 1098351.

It is an arithmetic number, because the mean of its divisors is an integer number (771145704).

Almost surely, 2^20630971466 is an apocalyptic number.

20630971466 is a deficient number, since it is larger than the sum of its proper divisors (16384022326).

20630971466 is a wasteful number, since it uses less digits than its factorization.

20630971466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19275 (or 19268 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 20630971466 in words is "twenty billion, six hundred thirty million, nine hundred seventy-one thousand, four hundred sixty-six".